Studies have shown that natural immunity is very random post covid. Some have tons, others have none.
Historically human corona viruses have always had very short immune periods, about three months.
Other viruses don’t mutate like rna viruses do, but nevertheless eradication of viral disease has always been successful with vaccination.
https://www.babygaga.com/10-diseases-eradicated-through-vaccination/
I know people that have gotten Covid twice (they worked on a Covid floor of a Hospital). They didn’t get it a 3rd time (and probably won’t).
Vaccination immunity IS NOT and has never been better than Natural immunity for the vast amount of people infected with diseases.
The Immunity provided by these vaccines is TERRIBLE. There weren’t be boosters if it wasn’t terrible. duh.